Chest Pain
Most heart attacks involve discomfort in the center of the chest that lasts more than a few minutes, or that goes away and comes back. It can feel like uncomfortable pressure, squeezing, fullness or pain.

Discomfort in the Upper Body
Symptoms can include pain or discomfort in one or both arms, the back, neck, jaw or stomach.

Shortness of Breath
The person may have shortness of breath with or without chest discomfort.

Other Signs
Other signs may include breaking out in a cold sweat, nausea or light-headedness, a sense of impending doom, and more.
Heart attacks are life-and-death emergencies — every second counts. If you or a friend or loved one have any of the above listed symptoms, immediately call 9-1-1 or your local emergency response number. Not all of these signs may occur in every heart attack.

Sometimes they go away and return. If some occur, get help fast! Today heart attack victims can benefit from new medications and treatments unavailable to patients in years past. For example, clot-busting drugs can stop some heart attacks in progress, reducing disability and saving lives.

But in order to be effective, these drugs must be given relatively quickly after heart attack or stroke symptoms first appear. So again, don't delay — get help right away!